ArticleClinical rheumatology2026
A distinct gastrointestinal symptom profile characterizes clinically relevant fatigue in systemic sclerosis.
Article in Clinical rheumatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveTo identify the specific gastrointestinal (GI) symptoms associated with clinically relevant fatigue in systemic sclerosis (SSc), beyond the established association between overall GI involvement and fatigue.
methodsWe conducted a cross-sectional study including consecutive patients with SSc fulfilling the 2013 ACR/EULAR classification criteria. Fatigue was assessed using the Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) scale, with clinically relevant fatigue defined as a score ≤ 30. Demographic, clinical, laboratory, and organ involvement data were collected. Individual GI symptom domains (GERD, dysphagia, bloating, diarrhea and constipation), together with the Medsger GI severity score, were analyzed. Bivariate analyses and multivariable logistic regression analyses were performed to evaluate symptom-specific associations with clinically relevant fatigue.
resultsAmong 115 patients, clinically relevant fatigue was observed in 42 (36.5%). Patients with FACIT-Fatigue ≤ 30 more frequently reported GERD (90.5% vs 60.3%), dysphagia (40.5% vs 16.4%), bloating (66.7% vs 15.1%), and diarrhea (28.6% vs 11.0%) (all p < 0.05). No statistically significant between-group differences were detected in the available objective disease measures. In the primary Firth penalized logistic regression model, bloating (OR 9.11, 95% CI 3.53-25.71) and GERD (OR 4.08, 95% CI 1.29-15.44) were associated with clinically relevant fatigue. Dysphagia showed a directionally consistent but less precise association. In a continuous-outcome sensitivity analysis, GERD, dysphagia, and bloating were associated with lower FACIT-Fatigue scores.
conclusionsClinically relevant fatigue in SSc was associated with a distinct profile of patient-reported GI symptoms, particularly bloating and GERD. These findings provide a more granular characterization of fatigue-related GI burden in SSc. Key Points • This study moves beyond aggregate gastrointestinal involvement by examining symptom-specific correlates of fatigue in systemic sclerosis. • Bloating and GERD were independently associated with FACIT-Fatigue ≤ 30, whereas dysphagia was associated with greater fatigue severity only in the continuous-outcome sensitivity analysis. • Clinically relevant fatigue in SSc appears to cluster more closely with patient-reported GI and functional burden than with conventional measures of disease severity.
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